No, you do not always need to put a comma after the word "so" if it is the first word in a sentence. It depends on the context and flow of the sentence.
You can put the word "separate" in a sentence by saying something like, "Please separate the items into two piles."
I am revising my essay to make sure it's free of errors.
Sure! Here's a sentence using the word "utilize": "Employees are encouraged to utilize the new software to improve efficiency in the workplace."
You can put a comma before or after just about any word if the sentence structure requires it. If the sentence structure does not require it, it may be permissable to use a comma to assist in clarity and avoid confusion. Otherwise, don't use a comma. Have I confused you yet? Using a comma does not depend on the word, it depends on the structure of the sentence.
The resonant frequency of that note was 440 Hz.
The organ music resonates throughout St Peter's Cathedral. The candidate chose topics that would resonate with his supporters.
Here is an example sentence for 'resonate':The yodel resonated in the Alps until it faded away into the distance.
Pavarotti's voice seemed to resonate endlessly in that cathedral.
I put the word wool in a ten word sentence.
see How do you put the word countries in a sentence?
The word is put in a sentence like I just did right now.
you have just put it in a sentence....
yes you can put in a sentence
How do you put dissent in a sentence How do you put dissent in a sentence
I can put the word opaque into a sentence. Alternatively, The wall is opaque.
you just put it in a sentence :S